Finding the Third Proportional to 63,464.50 and 139,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,464.50 : 139,385.50 = 139,385.50 : x
2. Step 2: Convert to fraction form
   63,464.50/139,385.50 = 139,385.50/x
3. Step 3: Cross multiply
   63,464.50x = 139,385.50 × 139,385.50
4. Step 4: Simplify right side
   63,464.50x = 19,428,317,610.25
5. Step 5: Solve for x
   x = 19,428,317,610.25/63,464.50
6. Step 6: Final answer
   x = 306,128.90